In this paper, we briefly discuss the RCPI in the
circular storage ring. We assume the atoms are rotating syn-chronically with
their separation perpendicular to the plane of motion. For a two-atom
system coupled with a massless scalar field, the result is quite
straight-forward [1]}. If we impose some interactions in the
external field, then several non-thermal features come to the scenario. For a
massive scalar field in Schwarzschild spacetime, the RCPI shows a retarded
behavior[2]}. In the presence of a vector field (i.e.
electromagnetic field) the response also shows a non-Planck spectrum
[3]}, [4]}, [5]}, [6]}. We simultaneously consider
these two above interactions in our calculations. The energy shifts due to RCPI
are calculated. The shift terms show a unique retarded behavior in comparison
with the massless case. We also derive the length-dependence of the RCPI and
compare it with the thermal behaviors. The energy shift can be encoded by the
polarization transfer technique. For two stationary qubit, quantum information
can be transferred between different polarization modes within the coherence
time [7]}. That information transfer can be envisaged
using any kind of spectroscopy [8]}, [9]}. Still, one cannot get ride of the decoherence
effect due to system-environment coupling. However, in the intermediate time
regime or before the system equilibrate, the effectiveness of this procedure
brings a new era in the field of quantum information processing and quantum
technologies [10]}, [11]}. We also give here a theoretical
analysis to distinguish the retardation effect of RCPI using the concepts of
polarization transfer.
